A test of the efficacy of sand saltation for silt production: Implications for the interpretation of loess

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dc.contributor.authorAdams, Steven M.
dc.contributor.authorSoreghan, Gerilyn S.
dc.date.accessioned2021-11-12T14:21:53Z
dc.date.available2021-11-12T14:21:53Z
dc.date.issued2020-07-21
dc.description.abstractProduction of the silt that forms loess is attributed to processes operating in both glacial systems (glacial grinding) and sandy deserts (saltation-induced fracturing). However, the efficacy of saltation for significant silt production is controversial. Understanding the potential for silt production in deserts is essential for determining the paleoclimatic significance of loess. To better assess the significance of eolian abrasion for silt production, experimental abrasion was conducted in a device designed to simulate sand saltation at sustained storm-wind velocities (∼25 m/s). The design differs from previous work in (1) maintaining strong measured velocities for long duration, (2) removing preexisting silt and utilizing control samples, (3) and scaling results to estimate potential for loess accumulation. Scaling experimental rates of production to geologic proportions indicates that eolian abrasion of sand produces insufficient silt to create geologically significant loess deposits.en_US
dc.description.peerreviewYesen_US
dc.description.sponsorshipFunding was provided by the National Science Foundation (EAR-1338331 and OISE 1658614), the Eberly Family Chair, University of Oklahoma, the Society for Sedimentary Geology (SEPM; student grant), and the Geological Society of America (student grant).en_US
dc.identifier.citationAdams, S.M., and Soreghan, G.S., 2020, A test of the efficacy of sand saltation for silt production: Implications for the interpretation of loess: Geology, v. 48, p. 1105–1109, https://doi.org/10.1130/G47282.1en_US
dc.identifier.doi10.1130/G47282.1en_US
dc.identifier.urihttps://hdl.handle.net/11244/331244
dc.languageen_USen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectabrasionen_US
dc.subjectAfricaen_US
dc.subjectclastic sedimentsen_US
dc.subjectdune fieldsen_US
dc.subjecteolian featuresen_US
dc.subjectexperimental studiesen_US
dc.subjectfracturingen_US
dc.subjectglaciationen_US
dc.subjectgrain sizeen_US
dc.subjectloessen_US
dc.subjectNamib Deserten_US
dc.subjectpaleoclimatologyen_US
dc.subjectsaltationen_US
dc.subjectsanden_US
dc.subjectscale modelsen_US
dc.subjectsedimentsen_US
dc.subjectsilten_US
dc.subjectsimulationen_US
dc.subjectwindsen_US
dc.titleA test of the efficacy of sand saltation for silt production: Implications for the interpretation of loessen_US
dc.typeArticleen_US
ou.groupMewbourne College of Earth and Energy::School of Geosciencesen_US

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